Cats can eat raw pumpkin, but only the flesh of the pumpkin should be given, not the skin, stem, leaves, or pulp. The flesh can be chopped into bite-size pieces or pureed and mixed into their food. Raw pumpkin flesh is safe and can provide fiber and nutrients beneficial for digestion, but it should be offered only as a treat and in moderation. Parts like the outer skin and seeds should be avoided or carefully prepared to prevent choking or digestive issues. Pumpkin pie and pumpkin pie filling are unsafe due to sugar and spices harmful to cats.